http://journal.uir.ac.id/index.php/JGEET 
 

 

 

 
  

 

http://journal.uir.ac.id/index.php/JGEET


 
 

 



 
 

 



 
 

 



 
 

 

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http://creativecommons.org/licenses/by-sa/4.0/
http://creativecommons.org/licenses/by-sa/4.0/